He is known for his role on the television series Rent-a-Goalie, as well as his work co-starring opposite Shirley MacLaine and Mischa Barton in the feature length motion picture Closing the Ring.

He also played Adam in the first season of the television series Dante's Cove; he was replaced in the second season by Jon Fleming.
In 2007, Amell won a Gemini Award for his guest-starring role on Regenesis.
Amell was also nominated for a Gemini Award in the Best Ensemble Cast Category for Rent-a-Goalie.

He had recurring roles in the TV series Da Kink In My Hair and Heartland.
Amell, credited as 'Steve Amell,' appeared in three episodes of the fourth season of Queer as Folk as the Liberty Ride spinning instructor.
On December 3rd 2010 Amell joined the cast of The Vampire Diaries as werewolf 'Brady' for season 2.[

Amell starred as Joran van der Sloot in the Lifetime movie Justice for Natalee Holloway which originally aired in May 2011.

On October 2nd, 2011, Season 3 of HBO's TV series Hung premiered with Amell starring as busboy-turned-prostitute 'Jason', a younger rival "ho" to Thomas Jane's 'Ray Drecker'. And in 90210 Season 4 Episodes 4 & 5 as Jim.
Amell announced on October 28th 2011 that he had just finished filming the Christmas episode of New Girl with Zooey Deschanel and Max Greenfield. He touches on the experience of filming his first "network half hour comedy" in an interview with Daemon's TV.

The Hollywood Reporter announced on November 9th, 2011 that Amell booked the recurring role of "Scottie", a paramedic on ABC's primetime medical drama Private Practice. Amell began filming mid-November and has said via his Facebook page that the episodes will likely begin airing in January.
In January 2012, Amell was cast as the titular character in the The CW series Arrow, a re-imaging of the comic-book character Green Arrow.

First of all, the costume is designed by Colleen Atwood (Alice in Wonderland, Dark Shadows, Chicago and more), and it looks pretty damn slick. Here’s what Arrow pilot director/executive producer David Nutter had to say about the show and the costume:

“When I directed the pilot for Smallville, I knew that making Clark Kent relatable would be the key to audiences believing in him as a hero. Arrow is a different show — darker and harder-edged — but it’s the same core idea. We’re creating a real, believable world in which Oliver Queen can do incredible things. Colleen Atwood’s great work on the Arrow costume reflects that effort.”

Arrow also stars Katie Cassidy (Supernatural) and David Ramsay (Blue Bloods). The pilot was executive produced by Greg Berlanti, Marc Guggenheim (Green Lantern), Andrew Kreisberg, and Nutter, who is directing from a teleplay by Kreisberg & Guggenheim, and story by Berlanti & Guggenheim. Melissa Kellner Berman is co-executive producer.
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